I am currently using the official longterm 6.12 kernel, as it is modern but very stable.
On Fedora I have had at least 2 breakages with the current kernel, which can be avoided by not using that.
I would still like to try some modded kernels, as on NixOS it is really simple to just roll back to an older generation and change the kernel back.
I dont know how to find the available ones for boot.kernelPackages = pkgs.linuxPackages_xxx
?